Plunge into the depths of the unknown in this thrilling work of nonfiction, combining history, science, nature writing, and environmentalism, that invites its reader to explore the deepest recesses of our natural world. Oceans created, shaped, and sustain not just human life, but all life on Planet Earth, and perhaps beyond it. They are our history -- from evolution to exploration and colonialism; our present -- from beach holidays to transporting food and goods; and our future -- we cannot survive if sea levels are too low or too high, temperatures too cold or too warm. They are also vast spaces of immense wonder and beauty, and our relationship to them is innate and awe-inspired. Deep Wateris both a personal and wide-ranging reckoning with our complex relationship with the natural world, a book shaped by tidal movements and deep currents, lit by the presence of other minds and other ways of being. It speaks directly and uncompromisingly of the pressing urgency of the environmental catastrophe that is overtaking us, but is also suffused with the glories of the ocean, and the extraordinary efforts of the scientists and researchers whose work helps us to understand its secrets. For it is in this work, and the new ways of seeing it offers us, that we will find a means to understand our relationship not just with the planet, but our past, and perhaps most importantly, our future.